Sewer-pipe-junction cutter.



No. 827,070. YATENTED JULY 24, 1906- J. E. MINTBR. SEWER PIPE JUNGTION-CUTTER.

APPLIbA TIOI I FILED 001211, 1905.

2 sums-sun 1.

Fur NORRIS Pnuls CO., WASHINGTON; n. c.

PATENTED JULY 24, 1906.

V J. 2.. MINTER. YSEHW'ER PIPE .nmonou CUTTER.

I APPLICATION FILED 00'1.11, 1905.

I annnn-annm 2.

Jrzzvemfor: I (3 view of apipe,

UNITE-D STATES PATENT orrron.

JOHN E, MINTER, OF MACON; GEORGIA.

S E WER-PIPE-JUNQTION CUTTER.

s cificationjof Letters Patent.

Eatented July: 24, 1906.

Application filed October L1, 1905. Serial No. 282,305,.

con, inthe county of Bibb andState of Georgia, have invented certain newand. useful Improvements in Sewer-Pipe-Junction Cutters, ofwhich thefiollowingis a specification. My invention relatesto machines for cut:ting or trimming the ends of pipes while in. a lastic condition for thepurpose of forming seats thereon to fit against or within areceiving-seat formed in or on a pipe to be joined thereto.

The object of the invention is tozprovide a machine whichis particularlysimplein con.-

struction and by means of'which the ends of pipes or the like may beexpeditiously t-rimmedor cut at various inclinations and on variousradii in. the manufacture of pipes having T or Y branches and in cuttingcor.- responding ends on. the abutting sections of pipes-composed of twoormore sections dis.- posed at angles to each other.

The invention includes the parts and the combination and arrangement ofcomponent parts. to be hereinafter described, and. particularly pointedoutinthe claims.

The invention is susceptible of various em.- bodiments, amiv in. theaccompanying dra i gs I- have shown: a preferable ex mp ifi arti'onthereof, which will be described detail hereinafter.

In. the drawings, Figure 1. shows the ma. chine on apparatusin sideelevation. Fig. 2

isanendview of the machine Fig. 3 isa plan, view thereof. Fig. 4 is aperspective showing one. harac er of e out;v by the machine-., Fig. 5isa similar view of a pipe, showing another char c r cfse t cut, by themachine. Fig.6 is a view of a pipe made, in wo sections, he abu tingends o which. sectionsare y he machin Fig- 7 is a i e evaticnc a modifid con struc icn o base.

My inventionincludes generally a suitable I ba e crs ppcrt, a ame adjable. n at rence tothe base for the purpose of varying thein l nati n oithe path of travel of th tt s, a utteradju tably m un ed in he framedesignedto be oscillated in arcs of varying radii for cutting curvedseats orends on thepipes operated upon, and a second cutter designed tobe moved or rotated in a rectilinear direction for cuttingstraight endsuponthe pipes. operated upon thereby.

he nvention-further i ludes mea s fo preventing the tearing or breakingof the gec he pipe a ted pcn in hefinalefiective movement of; theoscillating cutter.

The base or upp r is e ignat d-by 1,. 1n the accompanying rawings andincludes g ne l y a horizonta ly-dispos d tabl 2. for supporting he pipr er ated, and other parts inwhich he utt r-frame lsmcunted'. The base ipreferab y constructed; similar to theordinary bench in which the topcon.-

stitutes he able 2. n ncludes or n ry supporting-legs3, although,asshown in F g, r nv nience n sh fting themachine in: stead f thelegs 3,the base may be support.-

ed at one end upon a wheel 4 and at its opposite end upon sectional legs5, designedjto have the lower sections thereof turnedup at right anglesto the-upper sections toprovrde handles in order that the machine may ber nd ed ab t i e s m lar manner. to-atruck or wheelbarrow.

he cutter-frame is designated by 6,, and in the illustratedexemplification thereof it in d s c mpanion ide bars 7 8 andiupper andlower bars 9 10, the whole forming arrgrd re tangularframe. This frame1s mc afle in slots in the table2-, is pivotally supported beneath heable 2 in, the ase by'm ans of, a pivotal. pin 11 extendingtransverselythrough the side of the base andthrough; a block 12, fixed betweensidebars 7 8 atone side of the frame, and is adjustably connected to thebase atits other side by meanstofares movable pin, 13, desigped toengage Qneof a series of openings in t e sides of thebase and an o eninginfia block 14:, corresponding to h 0 2., which, is fixed betw en. theother side bars 78.

hec cillating cutter 15 is suitably mounts ed in the frame 6 in suchmanner that 1tscntr ting-surface may move in arcs of varying radii andin varying planes above the surface 2. As shown; herein, the cutterproper is formed by a wire drawn taut. between t e ends of a frame comrisingside bars 16 and a crossbar 17. Tiie bars 16 are slidably mountedin contiguous bearings 18, provided with trunnions 19, journaled inbrackets. 20, slidably mounted-0n the bars 8. v The upper ends ofthebars 16 extend through openings or sockets, in the ends of the bars. 17;and are held against turning movement by hand.- screws 21. By looseningthese screws. the bars 16 may be rotated in order to take up any slackinthe wire constituting the cutter an adjusting-rod 22, having its lowerend suitably connected to the bracket and its upper end extendingthrough a bracket 23, projecting laterally from the contiguous bar 8,said end being surmounted by a hand-wheel 24, finding a bearing on thebracket 23, by means of which the rod 22 may be raised and lowered. Forholding the brackets in adjusted positions a hand-screw is associatedwith each of the same. venting the tearing or breaking of the edge ofthe pipe under treatment shown in the illustrated embodiment of myinvention includes a bearing-bar 26, adjustably mounted betweenhorizontally-disposed arms 27, which are adjustably secured to the bars7 in a similar manner to that described for adjustably securing thebrackets 20to the bars 8.

The jbar'26 is intended to form a rest for the rear edge of the pipeunder treatment and is therefore adjustably mounted as described, sothat it may be shifted to properly coact with the a cutter in thedifferent adjustments of the lat- 1 trunnions 19, the bar 26 having ter.

For cutting or trimming the edge of a branch pipe in making a T or Yjoint the cutter 15 is employed. To cut a pipe for a T- 1' joint, theframe 6 is held in a direct vertlcal position, so that the cutter 15will be main tained in a horizontal position. In order to trim the pipe,it is only necessary to adjust the cutter 15 a distance above thesurface 2 corresponding to the length of the pipe to be trimmed and tothen tilt the cutter-frame to one side, so that the axis of the pipe maybe brought into alinement with the axes of the been adjusted so' that itwill bear against the rear surface of the pipe at the line of cut, andthen to os- 'cillate the cutter-frame by drawing upon the bar 17, whichwill cause the cutting-wire to sweep across the end of the pipe andproperly cut or trim the edge of the latter.

For cutting a Y-joint the same manipulation of the cutter and bar 26 isfollowed, but the frame 6 as an entirety is shifted out of theperpendicular to the position indicated in Fig. 7. The degree to whichthe frame is inter 30 is normally clined is dependent upon the degree ofinclination at which it is desired to cut the end of the pipe.

The rotating cutter which is employed for trimming or cutting straightends upon pipes is indicated by 30, the same consisting of a wirestretched taut between the endofa rod 31 and the end of a bracket 32,secured to said rod. The rod 31 is supported in such a manner that itmay be shifted longitudinally and may also be turned about its axis. Inthe accompanying drawings the rod is shown as mounted in the ends ofbrackets 33 34, projecting from one of the bars 7. The cutheld in anelevated posi tion by a weight 35, attached to a cord 36, guided oversuitable rollers and connected to The means for premanner said cutterwill trim a the upper end of bar 31. This weight normally holds a stop37 on the bar 31 into engagement with the bracket 34.

in cutting or trimming a pipe with the cutter 30 the former is supportedupon the table 2 in such a position that the axis of the opening at theend trimmed will register with the rod 31, the cutter being adjusted tothe proper height. In order to properly register the axis of the pipewith the rod, it is sometimes necessary to break away a portion of thepipe, as indicated in Fig. 7. When the parts are in proper position, thecutter is rotated with the rod 31 as an axis, and in this straight edgeupon the end of the pipe at any desired inclination, dependent upon theinclination of the frame 6.

The construction and operation of my invention will be readilyunderstood upon reference to the foregoing description and accompanyingdrawings, and it will be appreciated that the parts and combinations'recited may be varied within a wide range without departing from thespirit. and scope thereof.

Having thus described the invention, what is claimed as new, and desiredto besecured by Letters Patent, is

1. In a pipe-cutter, the combination with a base, ofa rectangular framepivotally mounted in the base, said frame including double side bars, anoscillating cutter mounted between the innermost side bars, bracketssecured to one of the outermost sidebars, and a rotating cutter mountedin the brackets.

2. In a pipe-cutter, the combination with a base, of a rectangular framepivotally mounted in the base, said frame including double side bars, anoscillating cutter mounted between the innermost side bars, bracketssecured-to one of the outermost side bars, and a rotating cutter mountedin the brackets, comprising a rod journaled in the ends of saidbrackets, a bracket secured to said rod, and a wire stretched betweenthe end of said rod and the last-named bracket.

3. In a pipe-cutter, the combination with a base, a frame includingdouble side bars, a pivotal connection between one side of the frame andthe base, a detachable adjustable connection between the other side ofthe frame and the base, a cutter-frame provided with trunnions, bracketsadj ustably mounted on the innermost side bars of the first frame havingbearings for said trunnions, a bearingbar adjustably mounted between theoutermost side bars of the first frame, a second cutter comprising arod, a bracket secured to the end thereof, and a wire stretched betweenthe end of the rod and the end of the bracket, brackets secured to oneof said outermost side bars in which said rod is rotatable andlongitudinally movable, and a weight having IIO connections to the rodfor normally holding the second cutter in elevated position.

4. In a pipe-cutter, the combination with a base, a frame includingdouble side bars, a pivotal connection between one side of the frame andthe base, a detachable adjustable connection between the other side ofthe frame and the base, a cutter-frame provided with trunnions, bracketsadjustably mounted on the innermost side bars of the first frame havingbearings for said trunnions, a bearing-bar adjustably mounted betweenthe outermost side bars of the first frame, a second cutter comprising arod, a bracket secured to the end thereof, and a wire stretched betweenthe end of the rod and the end of the bracket, and brackets secured toone of said outermost side bars in which said rod is ro-' tatable andlongitudinally movable.

In testimony whereof I have hereunto signed my name, in the presence oftwo attesting witnesses, at Macon, in the county of Bibb and State ofGeorgia, this 22d day of September, 1905. v

J. E. MINTER.

Witnesses:

W. MERCER MORRIS, J. M. STEPHENS.

